Glencoe Physics Chapter 14

Period
Time needed for an object to complete one full cycle
Node
More than one wave that moves through the same medium and time
Interference
Any point that does not experience displacement
Wave
Disturbance that carries energy through matter
Logitudinal Wave
Wave in which the disturbance is parallel to the direction travel
Amplitude
Maximum distance an object in harmonic motion moves from equilibrium
Trough
Lowest point of a transverse wave
Wavelength
Shortest distance between two points where wave repeats
Periodic Motion
Motion that repeats in a cycle
Antinode
When two waves interfere at the point of greatest displacement
Transverse Wave
Travels in a direction perpindicular to its displacement
Frequency
Number of oscillations a wave makes each second
Refraction
Refers to the change in direction waves experience at the boundary between two different media
Crest
The highest point in a wave
simple harmonic
the back forth vibratory motion of a swinging pendulum
law of reflection
the angle of incidence is equal to the angle of reflection
pendulum
something that hangs and swings back and forth
incident wave
A wave that strikes the boundary between two media
ray
a straight line extending from a point
reflected wave
wave that bounces back from a barrier
resonance
having the character of a loud deep sound
standing wave
a wave that appears to stand in one place, even though it is really two waves interfering as they pass through each other
superposition
the placement of one thing on top of another
surface wave
A wave that occurs at the surface between two mediums
wave front
all the points just reached by a wave as it propagates
wave pulse
a single disturbance or pulse that travels through a medium